我想使用RegEx提取文本“ Received：by”之后的时间，但是它有很多值，并且我想在一个参数中存储很多值。
我已经这样创建了一个RegEx：
Received:by.+(?P<Hop_Time>\d\d:\d\d:\d\d)
但是我只得到了Hop_time的最后一个值。
这是我要从中提取Hop_time的文本类型的示例：
Received:by mail-ed1-f69.google.com with SMTP id b21so4825939edt.18 for <budsarin.temsawat@aaa.co.th>; Wed 26 Jun 2019 18:04:32 -0700 (PDT) X-Google-DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=q04dTGosad+dTkX0DLE3TZT1LvNQX45YXfBh9AMeFco=; b=a5lzAB+U25QwdRDIw/0H1CT0SGRZNRyiTRNJ1jg5kgfg4IPhyOeWkqm72Ay w1VV8x3kVzv2jgAyF9/W57NcN43CyejW+ag086fJy2LmqMM03q/Voz7A89av nxsiIx0V5BOWkcSl3XdBOqQD9imxNL9Bermp548jum51kOopBX6uALrW+Yy qfSravlh8ONQ8YTOC47iSPBQhCh0b1lMO51p5e6zeIwcLUO62YYl/N3DUKDeN vduYOj/HAEVQXqfO64Fepx6U2QAi2Lg6hM2zcdKMgDR/Wdj/QehmFj+Fl Ptag== X-Gm-Message-State:APjAAAUcvfjYPCkT4REkr2t4IE6NeIZTGRWloRcKwy0gyZHb MynBUQciUYH9gQifGU0TaLv4ddVqHoFhsAXIsniMfUuXeetryhOwO+1bS26ze2SA fvZIq6qEaOgJlMJZt9nUOMYE2WspxuBWVosL2kKutE99i5q9VzsMDuK+2wlVL4y MZOpqMIpA6mfKRnzX1cwrcvA9PPbiWI/x7Ldg0kx+kCRuuJQ== X-Received:by 2002:a17:906:3ed1:: with SMTP id d17mr602603ejj.285.1561597403255; Wed 26 Jun 2019 18:03:23 -0700 (PDT) X-Google-Smtp-Source:APXvYqw4u4lwcGK+asj4XNave7dmVhuneOG1zr46FOmbsgkj0gup9KvdYrzB1LJXS2zMNXf+I= X-Received:by 2002:a17:906:3ed1:: with SMTP id d17mr602584ejj.285.1561597403013; Wed 26 Jun 2019 18:03:23 -0700 (PDT) MIME-Version:1.0 References:<CAB-UEWaNHyJz4EyotLZA@mail.gmail.com> <CAB-UEWavdVz0J+ySP5u_GGZm+DVRg@mail.gmail.com> <CANAFqSiHpjuU5VNQ57MSwc9FuGfwMEu49EvSQ@mail.gmail.com> <CAB-UEWZBhEzT2QxwsBk-XBfzf7j0qHr5O7tyUxwQw@mail.gmail.com> <CANAFqSiKEMRGkFsA2awnVg5zKSmih6iGOAv7Ng@mail.gmail.com> In-Reply-To:<CANAFqSiKEMRGkFsA2=4wnVg5zKSmih6iGOAv7Ng@mail.gmail.com> From:Sirisri Jitvatkun <sirisri.jitvatkun@bbb.co.th> Date:Thu 27 Jun 2019 08:03:11 +0700
在此示例文本中，我想存储Hop_time的三个值："18:04:32"，"18:03:23"，"18:03:23"。
我可以使用RegEx这样做吗？如果是这样，我应该如何修改现有尝试以使其起作用？
答案 0 :(得分：1)
使用非贪婪的量词，以使.+不会跨越模式的多次出现。
Received:by.+?(?P<Hop_Time>\d\d:\d\d:\d\d)
答案 1 :(得分：0)
此表达式也可能起作用：
Received\s*:\s*by.*?(?P<Hop_Time>[0-9]{2}:[0-9]{2}:[0-9]{2})
（在this demo右上角进行了说明，如果您想进一步探索或修改它，在this link中，您可以逐步观察它如何与某些示例输入匹配） ，如果您愿意。
$re = '/Received\s*:\s*by.*?(?P<Hop_Time>[0-9]{2}:[0-9]{2}:[0-9]{2})/s';
$str = 'Received:by mail-ed1-f69.google.com with SMTP id b21so4825939edt.18 for <budsarin.temsawat@aaa.co.th>; Wed 26 Jun 2019 18:04:32 -0700 (PDT) X-Google-DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=q04dTGosad+dTkX0DLE3TZT1LvNQX45YXfBh9AMeFco=; b=a5lzAB+U25QwdRDIw/0H1CT0SGRZNRyiTRNJ1jg5kgfg4IPhyOeWkqm72Ay w1VV8x3kVzv2jgAyF9/W57NcN43CyejW+ag086fJy2LmqMM03q/Voz7A89av nxsiIx0V5BOWkcSl3XdBOqQD9imxNL9Bermp548jum51kOopBX6uALrW+Yy qfSravlh8ONQ8YTOC47iSPBQhCh0b1lMO51p5e6zeIwcLUO62YYl/N3DUKDeN vduYOj/HAEVQXqfO64Fepx6U2QAi2Lg6hM2zcdKMgDR/Wdj/QehmFj+Fl Ptag== X-Gm-Message-State:APjAAAUcvfjYPCkT4REkr2t4IE6NeIZTGRWloRcKwy0gyZHb MynBUQciUYH9gQifGU0TaLv4ddVqHoFhsAXIsniMfUuXeetryhOwO+1bS26ze2SA fvZIq6qEaOgJlMJZt9nUOMYE2WspxuBWVosL2kKutE99i5q9VzsMDuK+2wlVL4y MZOpqMIpA6mfKRnzX1cwrcvA9PPbiWI/x7Ldg0kx+kCRuuJQ== X-Received:by 2002:a17:906:3ed1:: with SMTP id d17mr602603ejj.285.1561597403255; Wed 26 Jun 2019 18:03:23 -0700 (PDT) X-Google-Smtp-Source:APXvYqw4u4lwcGK+asj4XNave7dmVhuneOG1zr46FOmbsgkj0gup9KvdYrzB1LJXS2zMNXf+I= X-Received:by 2002:a17:906:3ed1:: with SMTP id d17mr602584ejj.285.1561597403013; Wed 26 Jun 2019 18:03:23 -0700 (PDT) MIME-Version:1.0 References:<CAB-UEWaNHyJz4EyotLZA@mail.gmail.com> <CAB-UEWavdVz0J+ySP5u_GGZm+DVRg@mail.gmail.com> <CANAFqSiHpjuU5VNQ57MSwc9FuGfwMEu49EvSQ@mail.gmail.com> <CAB-UEWZBhEzT2QxwsBk-XBfzf7j0qHr5O7tyUxwQw@mail.gmail.com> <CANAFqSiKEMRGkFsA2awnVg5zKSmih6iGOAv7Ng@mail.gmail.com> In-Reply-To:<CANAFqSiKEMRGkFsA2=4wnVg5zKSmih6iGOAv7Ng@mail.gmail.com> From:Sirisri Jitvatkun <sirisri.jitvatkun@bbb.co.th> Date:Thu 27 Jun 2019 08:03:11 +0700
';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
var_dump($matches);